Pull pendent switch.



`FAY'A. BROGDEN, OF SYBACUSE. NXV YORK; .PLSSIGNOR TO FASES c SEYMOUR, INC,v

erste SOLVAY, YORK; A CORPOEATlON GF YORK.

To, all lwhom t may concern Be it known that I, -Fai' A.l Biiocniiii, a`

citizen of the United States, residingr at Syracuse, Vcounty of '()nondaga, State ot New York," have invented certain new and useful Improvements in Pull Pendent Switches, of which the following a specilication.

This invention relates to'.switches and more particularly to a pull pendent switch,

The invention hasfor one of its objects to yprovide a sin1ple, etlicient and easily asseni'- bled switch and one which' may be quickly connected to vor disconnected Yfrom the circuit which is controlled.

Another object is to construct a device ot i this character in which the operating mech-v anism may be easily accessible for adjustment and which presents an ornamental ap-.

pearance.

Other objects and the novel` features ot'j the invention will be apparent from `the following description taken in connection with the accompanying drawings, in which:

Figure 1 is an elevation of the improved switch, one-haltl of the shellbeingraised and part. of the other hall: being broken away to expose thel switching mechanism onv the interior thereof. Fig. isa vertical sectional view oi the 'switch taken alo-nc' the line 2 2 of Figi. l"wi th the shell lclosed.-

l'i shows views oi! both sidesol the movable contact plate or bridging` member; Ifigr. i3.

shows views o't'- both sides of the disk for ai-tuaiingi the contact member and to'wliich one end ot' the pull chain oi" cord is secured. Figi. T shows separated top plan views ot'thc pivot pin and rctractine; .spring mounted Fig. H is an elevation of the inner side of one ot' the insulating` supportingI.`

Fig'. l) is a perspective view ot' one' thereon.

blocks.

ot' the metallic tal-.ings or switch contacts.

Referring to the drawings the switch has an outer inclosingr casing or shell ot' brass or ."2 Alipiication iiiedaaiy 12, i912." seria; No. 709,943.

iiisiu ontheinteiior.

Fig. 4 is an elevation of the'iiinei side.

'ingrie t I PLL PENDENT f SWITCH.

Specification of Letters'ateat.

similar`niaterial coii'ipi'ising: two halves l() and ll.' 'each h'alt'beiiigr lined with liber or other insulating material.

,have tl The two halves ieir meeting' edges threaded as at lf and 'l' The threads .l2 ciigagcovcr the threads ,l1-3 'on the. upper pai-t 1l and loch. the liv-o `halves together, thus coi'iipletely inclosing, and- ,insulating the switch mecha- Thc lower hall lil has a central ,opening la therein and has a flan ing chain or cord guidefl soldered or othervisc secuil'ed to the shell l0. Two openings lJG are provided on the lower tace ot the scc tion nl() on opposite sides ot' the chain guide l5 to receive screws 16 by means ot'. which the shell 10' and the insulating supporting body are rigidlyconnectedtogether." The upper hall l1 ot" the shell has-an opening ll' `vertically 'in line with the opening; lvl iii the lower halt'. The opening lll' has a busliing 17 secured. therein through which the circuit wires 1S and .lll enter the interior ot' the casing. l l

Each ot' thc two blocks ot insulating); nia- 'tcrial 2() and 21, which comprise the insulating supporting; body 'for the opei'atinilj ii-icrliaiiisin. havey a stationary init set into and rigidly.' held in holes Zl'Vtherein` which holes are plugged up 'with insulating' inat'ei'ial. The nuts 22 on'v the interior ci" the blocks 2() and'zl arey threaded land allai ted to i'cceival the ends ot the screws 'lo' which 'extend thriaiggh opeiiiiigslli iny the shell and openings 2l in the liloclis 2l) and Ll. The blocks 2li and il are separated a certain distance by the three brass spacing.:l posts 2G andi? which are chaiifiielcdishaped havairgled sections at their ends iioriningr li-ct by means otl which they are secured to the blocks aiid terminal plates rll`lie blocks 2() aiul 2l 'are segmental-iii `lioi'i7.oiital/:ross section and nearly rectangular lin vertical cross section, being slightly rounded at'the corners.4 v.'il` he hloclis, together with their spacingT means thiis torni a cylinder having' a central longitudinal gap therein.

*lfhe cylinder will contorin to and be held seerin-ely by 'the inner cylindrical walls of thc ini-.losing casing; The feet on the opposite ends of the spacing post 259 QGand 27 are lill to seat a ainst theface of an incline 33 on l obtained 35 ment with the block 21 seatedin recesses in the vopposing faces of the blocks 20 and 21. The post 26 is a conductor and constitutes part of thecircuit` -and at one end is connected to the terminal plate 28, to which the conductor 18 i's connected`V b'yjneans of the screw 29. The terminal plate'28 is seated in a recess 30 in the upper endbof the insulating block 2O. The post 26 conducts the current across the gap between the two insulating blocks 20 and 21 vto the foot in engagement with the block 21 which is in electrical contact with the foot v31 of a` metallic facing 4plate 32 curved the perip eral face of a reduced portion or boss 34 of the insulating block 21.. The boss or reduced section 34 is'of insulating material and integral'with the block 21 and has' vscrew 41. i The terminal plate 40 and screw 41 are seated in a recess 42 at the upper vend -of the insulating block 21 and are connected post25 in engage# y means of the through screw 43. The foot ofthe facing plate 38 is'in electrical contact With the foot of the spacing post 25. It will thus be lseen that current is at all times connected to the facing)r plates 32 and 38 and in ordertd close the circuit 'I provide the bridging or movable contact plate shown 1n Fig. x5. The bridging member comprises a plate 44 stampedfrom a single sheet of conducting metal and provided with the four recesses to the foot of the spacing 45. rtits outer end the contact plate has A' secured thereto the diametrically oppositely facing spring contact fingers 46 and 47. One

ment with the face plates 32 and38 the cir-I cuit will be vcompleted and when in-engagef end of each ofthe contact fingers 46 and 47 is riveted or otherwise secured to the end of the plate 44 and the other end is bent upon` itself to form a resilient contact device to spring'over the inclines on the reduced section 34 of the insulating block 21. When th'e contactfingers 46 and 47 are' in vengagement; with the non-conducting seats or 1nclines 35 and 37 the circuit will be broken.

The bridging plate 44 has a central circular 'opening 48 therein which is adapted to re;-

ceive the shank 49 of the pivot pin 50 and mmber maas v 4be looselymounted thereon. To operateth'e plate 44 and alternately make and break the circuit fhave provided the' wheel s hown in Fig.v 6. The said wheel com rises a segmental sheet ofber '51 which l as a central a erture 52 lover 'which a plate 53 is fitted.

.. and as two lugs 54 thereon which are forced through theV fiber and clenched on the opposite side to secure the sheet '53 to the late l53 is stamped from Sheet metalmemberl. The plate 53 is also'provide'cll with a central aperture 55, and'has a'hub portion 56 by means of which the operating wheel is looselyv ivoted on the shank49 lo 'the-pivot pin.,

from the periphery of the plate 53 correspondingl tothe recesses 45 in the brid member 44 toen ge inthe recesses 45 an operate the sai bridging member as is usual. A tongue 58 is punched down from eeth 57 'are punched up the face of the plate 53 and is disposedfwitb in the opening 52-for a pur ose to be de-.

scribed. On the periphery o the fiber segment 51 there is a. chain guide or carrier 59 adapted to receive the innerend of the cord or pull chain 60 which passes through ythe ,opening 14 and depends centrall from the switch casing. The chain or cor carrier 59 has a bent and slotted tongue 61 at its upper.

end to receive the end ball on thechain or cord 60 and holds the same from Working loose within the 'casing butY is arranged so that the chain may be' removed therefrom. The blank formin the chain guide 59 has lugs 62 formed t erewith whlch may be forced through the fiber member 51 or holes therein and clenched on theopposite side to fastenthe chain guide -to the saidiber member. The bridging member shown in Fig. 5

is loosely mounted on the pivot pin 49 and bears on one side against the face ofthe re'- duced portion 34 on the insulating block 21. The contact fingers 46 and 47 on said brid ing member fit onto' the periphery and ri e Jover the inclines on said reduced section 34. The operating member shown in Fig. 6 fits against the other face of the bridging member and the teeth 57 on the operating member'a're arranged to engagemthe recesses 45 in the bridging member. To hold tho rating member in engagement with the dging member there is a torsion spring 63 which encircles the ivot pin'49 and vone end 64 thereof locks un er and bears aga-inst the tongue 58 on the plate 53 and the other end 65 passes through a hole 66 4in the angular head 67 of the pivot pin 50. The head 67 fits into a socket 68-in the insulating block 20. f T-he socket 68 has an 'angular portion 69 which keeps the pivot pin from turning ',hen the angular head 67 is seated therein. A shank 49 of the pivot-- pin fits into and seats against a spiral spring 70 arm .iged in of the spring A63.

central socket 71 in the inner face lof the insulating block 21. The spring 70 and the shank 4%) are about the same external chainetery and of a diameter equal to the inner diameter of the lsocket 70. The head 67 of the pivot'pin is provided' with a slot 72 andy has the corners cutaway. An opening 73 extends into thc.socket-opening 68 so that a screwdriver may be inserted and engage the slot 72 on'the head of the pivot pin to force theI same inwardly and turn the pivot pin for the purpose of' adjusting the tension The' pivot pin may be freely rotated when forced inwardly against .the pressureof spring 70 and which latter will force the pin back -into the angular socket (39 when the desired adjustment ot' the reti-acting spring ($3 has been effected.

The ol'ieration otl the device will-be briefly stated.l

rlhe leading in wires 18 and 1? of the circuit to be controlled having been connected to the terminal plates 28 and 40and the two halves of the'casing or shell having been connected together the switch is in condition to be operated by successively pulling the chainA or cord 60, thus alternately making and breaking the circuit. The chain 60 will -actiiatefthe fiber segment-"i1 which has the toothed'plate i3-secured thereto.` A pull onthe chain (if) .will step the bridging member L'l-'laround'a vquarter cfa turn, moving the contact' fingers i6 4and '47* from -the incline upon which they arebearing to the next suceeeding'incline. lnthc position shown vin l `ig. 2 the circuit is made,.the contact fingers bearing on the inclines provided withv the facing plates 32 and v3%. A pull on the cord lor chain l() will break the circuit and the operating segment. 1 will `be retracted by the spring 53 so that the teethl'? will engage in succeedingl recesses on the bridging member. As shown in Fig. 2 the spacing post 25 constitutes a stop for the fiberv segment 51p which engagesfagainst the lower 4edge of said post 25 when the segment is in l its retracted position. '[lie spacing post 27 .em'iperates with the. chain slot or holder 59 to guide the chain (30, and maintain the same iii its proper path, the chain bearing along the inner face of the post 27 as is indicated in Fig. 2. f

lt will' he seen that l have constructed a siiiiple and inexpensive switch for the purposes set l'orth and as variousmodifications may be made in the details without departing l'roni the spirit of the invention l. do not wish to be limited to the exact details as shown and described.

Having thus describedthe invention what is claimed as new is:

l. In a. switch the combination of a supporting body of insulating material, suitable terminals on one end thereof, vswitching mechanism mounted on the body, operating means tor said switching mechanism, and a casing inclosing said body and comprising two detachably connected parts, leach in- .closing a portion only of the insulating body, one of said parts being rigidl secured to the insulating bodysoas to eave the upperportion of the body and said termi- 4.nals exposed when the .other part of the Ycasing is removed, whereby access'may be had 'to the terminals without disconnecting one part of thecasing from the insulating body.

'A 2.' In an electric appliance the combination of asup'p'orting body comprising insulating material, suitable termlnals on the,

side of said body near one end thereof, a I

easing for said bedy comprising two detachably connected parts, one of said parts being of such size as toinclose only a. portion of said body, leaving exposed the side thereof -near said terminals, and means for attaching said one part of the casing to the insulating body, and screws accessible from .the exterior of th'c casing and engaging one of the parts of the casing and said threaded member in each of' said sections ofthe 'insulating body whereby saidsections andone part ot' the casingl are all rigidly connected together.

4. ln an electric switch the combination of a supporting body 'comprising two spaced blocks of insulating material, one of said bloc-ks having a reduced section or boss with inclines arranged. on the peripheral face thereof and extending in to thesspace between said blocks, switch contacts on-alternate inclines, a conducting plate rotatably mounted on'an axis concentric with the boss andhaving resilient contact fingers disposed at right angles thereto and engaging the inclinescon the boss, and means forrotating said plate to make and break the circu't. i

5. In an electricf siiiitc l1'"`I "e c'innbinationl of a supporting bodyof insulating material,

a pivot pin mounted thereon, contacts en said body, anda switch' member for successively connecting and disconnecting sald contacts, said swltch member comprlslng aA flat plate of conducting .Inaterial having a I.' having their broad faces disposed at right angles to the broady face of said plate, the

' free ends of the fingers being reversely disposed with respect to the secured ends, curving about the pivotal axis of the `plate andtending to spring inwardly toward the cen- 10 ter of the plate and into Contact with said contacts.

In testimony whereof I af'lix my signature in presence of two witnesses.

' FAY A. BROGDEN.

Witnesses: Y

HARRY J. MoREY,- N. A. .HURD. 

